EP1040875B1 - Revêtement multicouche au toucher souple - Google Patents

Revêtement multicouche au toucher souple Download PDF

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Publication number
EP1040875B1
EP1040875B1 EP00103045A EP00103045A EP1040875B1 EP 1040875 B1 EP1040875 B1 EP 1040875B1 EP 00103045 A EP00103045 A EP 00103045A EP 00103045 A EP00103045 A EP 00103045A EP 1040875 B1 EP1040875 B1 EP 1040875B1
Authority
EP
European Patent Office
Prior art keywords
layer
soft
multilayer coating
pigmented
feel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP00103045A
Other languages
German (de)
English (en)
Other versions
EP1040875A2 (fr
EP1040875A3 (fr
Inventor
Patrick Praet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bollig and Kemper KG
Original Assignee
Bollig and Kemper KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7903203&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1040875(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bollig and Kemper KG filed Critical Bollig and Kemper KG
Publication of EP1040875A2 publication Critical patent/EP1040875A2/fr
Publication of EP1040875A3 publication Critical patent/EP1040875A3/fr
Application granted granted Critical
Publication of EP1040875B1 publication Critical patent/EP1040875B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/53—Base coat plus clear coat type

Definitions

  • the present invention relates to a multi-layer coating with softfeel effect and their use.
  • soft-feel varnishes are understood as those varnishes that are characterized by a special feel (grip).
  • the softfeel effect is based essentially on a combination of braking and sliding action.
  • Soft-feeling paints are used in particular for the coating of plastics and for automotive interior painting.
  • the EP-0 669 352 B1 describes Softfeelinglacke polyester / polyurethane-based. All examples disclose a soft-feel varnish that also contains the pigment. An application of this Softfeelinglacks on a pigmented coating is not mentioned.
  • Softfeelinglacke A particular problem of the previously known Softfeelinglacke is their adhesion to various substrates. Due to the rubber-elastic properties of a Softfeelinglacks show such coatings on critical substrates (eg on plastic surfaces) a worse adhesion, than comparable paints without soft feeling effect. In the field of plastic painting, it is therefore very often necessary to use adhesion promoters in order to achieve acceptable adhesion in this way.
  • the object of the present invention is to provide a pigmented finish with a soft feel effect and the use thereof, wherein in particular the adhesion and the soft feel effect are improved compared with the known soft feel lacquers of the prior art.
  • this object is achieved by a multicoat system consisting of a first layer of color on the substrate and another layer of unpigmented second layer above the first layer, the second layer being wholly or partially obtainable from an unpigmented soft-feel finish.
  • the first coloring layer may be any layer obtainable by a crosslinking or curing process of a pigmented coating composition based on organic solvents, water or powder.
  • coloring layer Particularly preferred for the preparation of the first, coloring layer are those paints which are used as so-called “basecoats” for the multi-layer coating of Automobilrohkarosserien.
  • This multi-layer coating of automobiles generally consists of four different layers (electrocoating layer, surfacer layer, basecoat layer and clearcoat layer). It is the task of the basecoat layer to give the body the desired color and to provide a well-defined adhesion to the filler layer. The latter property is particularly important for the stone chip resistance of a car paint.
  • a preferred embodiment of the invention is the use of a water-based pigmented lacquer to form the first coloring layer.
  • a water-based pigmented lacquer to form the first coloring layer.
  • the dry layer thickness has no decisive influence on the properties of the multicoat system according to the invention; it is usually in a range between 12 and 40 .mu.m.
  • any lacquer which contains at least one binder which, due to its special chemical and physical properties, imparts the rubber-elastic properties necessary for the soft-feeling effect to this layer.
  • binders are known per se and are already used for the production of pigmented soft-feel coatings.
  • the amount of this binder is usually in a range between 25 and 65 wt .-%, based on the solids content.
  • unpigmented is understood to mean those coatings or coatings which contain no coloring pigments.
  • coloring pigments does not mean matting agents which usually contain phyllosilicates or waxes.
  • Particularly suitable binders imparting soft feel properties to the second layer are those polyester / polyurethane based binders. These binders are detailed in the European Patent 0 669 352 described and sold by Bayer AG under the tradename Bayhydrol ®.
  • the soft-feel multi-layer coating according to the invention shows a significantly improved feel compared to the pigmented soft-feel coatings of the prior art.
  • the dry layer thickness of the second layer is usually in a range between 15 to 60 microns. In general, the thicker the dry film thickness, the more pronounced the soft feel effect becomes.
  • Another embodiment of the invention is the use of a matting agent in the second, unpigmented layer. This causes an increase in the braking effect of the finished paint layer. In this way it is possible to adjust the exact braking and sliding action of the multicoat system according to the invention.
  • the multicoat system according to the invention is suitable for the coating of plastic surfaces, in particular of parts of the automobile interior trim.
  • parts of the interior linings can be coated with the same paint and the same devices as plastic attachments (such as bumpers).
  • the basecoat described above is 85 by means of a spray gun onto a plastic plate made of Bayblend ® T 150 * applied (polycarbonate / ABS) with the dimensions 210 * 3 mm, so that a dry film thickness of 15 microns is obtained. Then, this layer is flashed for 2 minutes at room temperature and then dried at 80 ° C for 4 minutes. Thereafter, the soft-feel clearcoat described above is applied by means of a spray gun, so that a dry film thickness of 55 microns is obtained. After a flash off time of 5 minutes at room temperature, the coated plate is dried at 80 ° C for 30 minutes.
  • This mixture is then adjusted with 1.2 g of n-methylpyrrolidone and 2.4 g of deionized water to the required Mahlgutviscosity and ground to a granularity of 10 .mu.m by means of a bead mill.
  • 104 g of a commercial polyester / polyurethane dispersion (Bayhydrol ® PR 340) are added with stirring and the resulting mixture after addition of 21.4 g of Pergopak ® M4 and 6.8 g of a commercially available matting agent (OK 500 from the Fa. Degussa) for 20 minutes.
  • 14.0 g of butylglycol and 14.0 g of demineralized water are added to this mixture with stirring.
  • This paint composition is then adjusted with 5.2 g of deionized water to a viscosity of 45 seconds at 20 ° C measured with a DIN B4 cup.
  • the pigmented soft feeling paint described above is 85 by means of a spray gun onto a plastic plate made of Bayblend ® T 150 * applied (polycarbonate / ABS) with the dimensions 210 * 3 mm, so that a dry film thickness obtained of 60 microns. After a flash off time of 5 minutes at room temperature, the coating is dried at 80 ° C for 30 minutes.
  • the finished coatings are tested according to the tests specified in Table 1 for adhesion, climatic resistance, abrasion resistance and care agent resistance.
  • the abrasion resistance is examined with a Crockmeter with a linen cloth without load both dry and with ethanol.
  • the care product resistance is examined according to the Mercedes Benz specification DBL 7384, according to which various test solutions (plastic cleaner, tar remover, window cleaner, stain remover) are applied to a square felt (from the company Empa, St. Gallen, Switzerland) with an area of 2.25 cm 2 , The so well soaked felt is reciprocated under a mass of 332 g on the test surface by means of a device (test track: 30 to 50 mm). It should be completed in 2 minutes 170 double strokes.
  • Table 1 clearly shows that the multi-layer coating according to the invention with softfeel effect has markedly improved properties in comparison to the softfeel lacquers of the prior art.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Cosmetics (AREA)
  • Toys (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Laminated Bodies (AREA)

Claims (6)

  1. Laquage en plusieurs couches composé d'une première couche chromophore appliquée sur un substrat et d'une seconde couche non pigmentée appliquée sur la première couche, caractérisé en ce que la seconde couche se compose entièrement ou partiellement d'un vernis softfeeling non pigmentée contenant un liant à base de polyester/polyuréthane.
  2. Laquage en plusieurs couches selon la revendication 1, caractérisé en ce que la première couche peut être obtenue à partir d'une laque pigmentée à base aqueuse.
  3. Laquage en plusieurs couches selon l'une des revendications 1 ou 2, caractérisé en ce que la première couche peut être obtenue à partir d'une laque à deux composants.
  4. Laquage en plusieurs couches selon l'une quelconque des revendications précédentes, caractérisé en ce que la seconde couche contient en plus un agent de matissement.
  5. Laquage en plusieurs couches selon l'une quelconque des revendications précédentes, caractérisé en ce que le substrat est une surface en matière synthétique.
  6. Utilisation d'un laquage en plusieurs couches selon l'une quelconque des revendications précédentes pour la décoration intérieure des carrosseries d'automobiles.
EP00103045A 1999-03-31 2000-02-15 Revêtement multicouche au toucher souple Revoked EP1040875B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914807 1999-03-31
DE19914807A DE19914807C1 (de) 1999-03-31 1999-03-31 Softfeeling-Mehrschichtlackierung und deren Verwendung

Publications (3)

Publication Number Publication Date
EP1040875A2 EP1040875A2 (fr) 2000-10-04
EP1040875A3 EP1040875A3 (fr) 2004-05-26
EP1040875B1 true EP1040875B1 (fr) 2007-09-12

Family

ID=7903203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103045A Revoked EP1040875B1 (fr) 1999-03-31 2000-02-15 Revêtement multicouche au toucher souple

Country Status (4)

Country Link
EP (1) EP1040875B1 (fr)
AT (1) ATE372834T1 (fr)
DE (2) DE19914807C1 (fr)
ES (1) ES2296577T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9523021B2 (en) 2014-04-25 2016-12-20 Ppg Industries Ohio, Inc. Waterborne coating compositions for soft touch coatings
US10865326B2 (en) 2017-09-20 2020-12-15 Ppg Industries Ohio, Inc. Coating compositions, elastic barrier coatings formed therefrom, and methods of applying such coatings

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049592A1 (de) * 2004-10-12 2006-05-04 Bayer Materialscience Ag Mit Soft-Touch-Lack beschichtete, verformbare Kunststoffverbundfolien und Kunststoffverbundelemente sowie deren Herstellung
US10836924B2 (en) 2019-03-15 2020-11-17 Ppg Industries Ohio, Inc. Coating compositions and elastic barrier coatings formed therefrom
US10829664B2 (en) 2019-03-15 2020-11-10 Ppg Industries Ohio, Inc. Coating compositions containing polythioethers and elastic barrier coatings formed therefrom
CN113174111B (zh) * 2021-05-26 2022-09-02 广州华邦电器工业有限公司 一种耐热性和阻燃性良好的改性abs树脂及制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5116639A (en) * 1989-02-07 1992-05-26 Steelcase Inc. Monolithic finishing process and machine for furniture parts and the like
DE4406159A1 (de) * 1994-02-25 1995-08-31 Bayer Ag Wäßrige Polyester-Polyurethan-Dispersionen und ihre Verwendung in Beschichtungsmitteln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9523021B2 (en) 2014-04-25 2016-12-20 Ppg Industries Ohio, Inc. Waterborne coating compositions for soft touch coatings
US10865326B2 (en) 2017-09-20 2020-12-15 Ppg Industries Ohio, Inc. Coating compositions, elastic barrier coatings formed therefrom, and methods of applying such coatings

Also Published As

Publication number Publication date
DE19914807C1 (de) 2000-06-29
EP1040875A2 (fr) 2000-10-04
DE50014640D1 (de) 2007-10-25
ATE372834T1 (de) 2007-09-15
ES2296577T3 (es) 2008-05-01
EP1040875A3 (fr) 2004-05-26

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